Hong Kong Regulations

POISONS LIST REGULATIONS - REGULATION 2

Interpretation

(Past version on 30/06/1997).

In the Poisons List set out in the Schedule, unless the context otherwise
requires-

   (a)  a reference to a substance shall include a reference to that substance
        prepared either from natural sources or artificially;

   (b)  a reference to a substance shall include a reference to that substance
        when contained as such in any preparation, solution, mixture or
        natural substance;

        (c)	a "derivative" (衍生物) is an organic compound which is related to 
another organic compound (henceforth called the "parent compound") by virtue
of its having-

        (i)    the same elemental ring and/or chain, nucleus or skeleton; and

        (ii)   similar pharmaceutical activity. It may have a molecular weight
               which may be the same as, or higher or lower (for example,
               after formation of a derivative by the process commonly known
               as dehydrogenation) than that of the parent compound, and its
               preparation may or may not require the presence of the
               parent compound;

   (d)  substances listed in Divisions A are those whose uses are essentially
        medicinal, whilst substances listed in Divisions B are not normally
        used medicinally. (L.N. 42 of 2007)

"derivative" (衍生物)